Brimy, I use HF 65% beads (2#) and 10# of Kitty Litter. It is spread throughout top to bottom in mesh bags and cookie sheets and a 13x9 cake pan. I couldn't be more happy with how steady it hold Rh. We keep out house temp a pretty constant 73-74f so I don't use the cooling on my wineador. I do freeze my cigars before putting them in the unit.